CN103517197B - A kind of experimental technique of optimization design of cone shape of speaker cone - Google Patents
A kind of experimental technique of optimization design of cone shape of speaker cone Download PDFInfo
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- CN103517197B CN103517197B CN201210222179.6A CN201210222179A CN103517197B CN 103517197 B CN103517197 B CN 103517197B CN 201210222179 A CN201210222179 A CN 201210222179A CN 103517197 B CN103517197 B CN 103517197B
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Abstract
The present invention provides the experimental technique of a kind of optimization design of cone shape of speaker cone, the present invention utilize surface tension and gain freedom can minimum, Free Surface is minimum and the experimental technique of the surface of stability, the diffuser cone shape determining size is optimized design, promotes the performance of diffuser.
Description
Technical field
The present invention relates to speaker field, the experimental technique of a kind of optimization design of cone shape of speaker cone.
Background technology
In modern electroacoustic development in science and technology, as the speaker of one of the critical elements in electro-acoustic element by people's most study, be also more generally, more deep；And therefrom we are it is also seen that the development of speaker is said to a certain extent, it be the development with vibrating diaphragm, exploitation be closely related, particularly paper pulp vibrating diaphragm (cone) is then especially prevalent.The impact on speaker performance of the geometry of vibrating diaphragm cone, the especially impact on high frequency characteristics are significant.
Therefore, design to diaphragm of loudspeaker cone geometry is taken seriously, design to diaphragm of loudspeaker cone geometry at present, common are: the types such as exponential curve type, hyperbolic-type, linear type, parabolic type, circular line style, also there is people that on the impact of loudspeaker high frequency characteristic, diaphragm of loudspeaker cone geometry was done experimentation, it is documented: " ... can there is infinite a plurality of curve between two points, the simply part that available mathematical formulae is expressed.As to diaphragm of loudspeaker shape being also, the most numerous selections.”
But, it is considered that this does not simply search out an optimal-design method and causes, and, this method of thinking is not consider that its surface area changes, the judgement only considering can to have between two points infinite a plurality of curve and make, considers it is significantly to have weak point physically.
To this end, the present invention provide a kind of utilize surface tension and gain freedom can minimum, Free Surface is minimum and the experimental technique of the surface of stability, utilizes this method that the diffuser cone shape determining size is optimized design.
Summary of the invention
It is an object of the invention to provide a kind of utilize surface tension and gain freedom can minimum, Free Surface is minimum and the experimental technique of the optimization design of cone shape of speaker cone of the surface of stability.
For reaching above-mentioned purpose, the technical solution used in the present invention is: the experimental technique of a kind of optimization design of cone shape of speaker cone, and described method comprises the following steps successively:
1
) making framework, described framework includes the radius of the big cone opening with described diffuser cone shape
R
For radius the first annulus, with the radius of the tiny cone opening of described diffuser cone shape
r
For the second annulus of radius, described first annulus is arranged on directly over described second annulus, and the distance between described first annulus and described second annulus is the height of described diffuser cone shape
h
；
2
) described framework is immersed in experimental liquid；
3
) from solution, take out described framework and puncture the round liquid film on described first annulus and described second annulus, retain the annular surface liquid film between described first annulus and described second annulus；
4
) use the geometry of annular surface liquid film described in camera recordings；
5
) according to step
4
In), the geometry of the described annular surface liquid film of record designs described diffuser cone shape.
Preferably, according to the comparison correction described diffuser cone shape of the coefficient of surface tension of paper pulp with the coefficient of surface tension of experimental liquid.
Preferably, according to the comparison correction described diffuser cone shape of the density of paper pulp with the density of experimental liquid.
Preferably, described step
4
Annular surface liquid film described in camera recordings in) is from starting shape and time of being generated to rupture.
It is further preferred that according to described annular surface liquid film from starting shape and time of being generated to rupture, carry out the comparison of time, shape, stability.
It is further preferred that according to described time, shape, the described correction of the comparison described diffuser cone shape of stability.
Operation principle of the present invention is: by surface tension of liquid, and the Free Surface of liquid presents the trend of contraction, will eventually get the surface that a free energy minimization, Free Surface are minimum and stable, and finding out big cone opening radius according to tension principle is
R
, tiny cone opening radius is
r
, height is
h
Most stable of diffuser cone shape.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
1
, owing to the present invention utilizes surface tension of liquid, find out most stable of diffuser cone shape, thus improve optimization diffuser cone shape, promote the performance of speaker, particularly promote the high frequency performance of speaker.
2
, owing to the present invention is according to the comparison correction diffuser cone shape of experimental liquid performance Yu pulp property, it is possible to obtain stability more preferable diffuser cone shape.
Accompanying drawing explanation
Accompanying drawing
1
The schematic diagram of assembly of the invention；
Accompanying drawing
2
For optimizing front speaker cone Frequency Response figure；
Accompanying drawing
3
For optimizing rear speaker cone Frequency Response figure.
In the figures above:
1
, the first annulus；
2
, the second annulus；
3
, annular surface liquid film.
Detailed description of the invention
The invention will be further described for embodiment shown in below in conjunction with the accompanying drawings:
Embodiment one: such as figure
1
Shown in, the radius of design big cone opening is
R
, the radius of tiny cone opening be
r
, a height of
h
The experimental technique of diffuser cone shape, described method comprises the following steps successively:
1
) making framework, described framework includes the radius of the big cone opening with described diffuser cone shape
R
For radius the first annulus
1
, with the radius of the tiny cone opening of described diffuser cone shape
r
The second annulus for radius
2
, the first annulus
1
It is arranged on directly over the second annulus
2
, the first annulus
1
With the second annulus
2
Between the height that distance is described diffuser cone shape
h
；
2
) described framework is immersed in experimental liquid；
3
) from solution, take out described framework and puncture the first annulus
1
With the second annulus
2
On round liquid film, retain the first annulus
1
With the second annulus
2
Between annular surface liquid film
3
；
4
) use camera recordings annular surface liquid film
3
Geometry；
5
) according to step
4
The annular surface liquid film of record in)
3
Geometry design described diffuser cone shape.
Embodiment two: the diffuser of a kind of two sections of conical surfaces, diffuser cone
h
Relatively big, the conical surface using two cone ends to be connected is bonded, figure
2
Frequency Response figure for the speaker of described two sections of conical surfaces；In an experiment when the height of diffuser cone
h
Time bigger, appear in equally in the middle of large and small prostomum radius
h
The shape being similar to two conical surfaces is had on direction.
Pass sequentially through following steps optimization design described two sections of conical surfaces speaker:
1
) making framework, described framework includes the radius of the big cone opening of the diffuser cone shape with described two sections of conical surfaces
R
For radius the first annulus, with the radius of the tiny cone opening of the diffuser cone shape of described two sections of conical surfaces
r
For the second annulus of radius, described first annulus is arranged on directly over described second annulus, and the distance between described first annulus and described second annulus is the height of the diffuser cone shape of described two sections of conical surfaces
h
；
2
) described framework is immersed in experimental liquid；
3
) from solution, take out described framework and puncture the round liquid film on described first annulus and described second annulus, retain two sections of conical surface liquid films between described first annulus and described second annulus；
4
) with described in camera recordings two sections of conical surface liquid films from shape and the time starting to be generated to rupture；
5
) according to step
4
In), the geometry of described two sections of conical surface liquid films of record redesigns the diffuser shape of described two sections of conical surfaces.
Test the diffuser of the new two section conical surface that this optimum experimental designs and produces, obtain figure
3
Shown Frequency Response figure, will figure
2
With figure
3
Contrast is it can be seen that diffuser Frequency Response curve fluctuation after optimum experimental is significantly less than the Frequency Response curve before optimization, and the performance that the diffuser after optimizing is when high frequency significantly improves.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention
。
Claims (6)
1. the experimental technique of an optimization design of cone shape of speaker cone, it is characterised in that: described method comprises the following steps successively:
1) framework is made, described framework includes the radius R of the big cone opening with described diffuser cone shape the first annulus as radius, the second annulus with the radius r of the tiny cone opening of described diffuser cone shape as radius, described first annulus is arranged on directly over described second annulus, and the distance between described first annulus and described second annulus is the height h of described diffuser cone shape；
2) described framework is immersed in experimental liquid；
3) from solution, take out described framework and puncture the round liquid film on described first annulus and described second annulus, retaining the annular surface liquid film between described first annulus and described second annulus；
4) by the geometry of annular surface liquid film described in camera recordings；
5) described diffuser cone shape is designed according to the geometry of the described annular surface liquid film of record in step 4).
The experimental technique of a kind of optimization design of cone shape of speaker cone the most according to claim 1, it is characterised in that: according to the comparison correction described diffuser cone shape of the coefficient of surface tension of paper pulp with the coefficient of surface tension of experimental liquid.
The experimental technique of a kind of optimization design of cone shape of speaker cone the most according to claim 1, it is characterised in that: according to the comparison correction described diffuser cone shape of the density of paper pulp with the density of experimental liquid.
The experimental technique of a kind of optimization design of cone shape of speaker cone the most according to claim 1, it is characterised in that: annular surface liquid film described in the camera recordings in described step 4) is from starting shape and time of being generated to rupture.
5. according to the experimental technique of a kind of optimization design of cone shape of speaker cone described in claim 1 or 4, it is characterised in that: according to described annular surface liquid film from starting shape and time of being generated to rupture, carry out the comparison of time, shape, stability.
The experimental technique of a kind of optimization design of cone shape of speaker cone the most according to claim 5, it is characterised in that: according to described time, shape, the comparison correction described diffuser cone shape of stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222179.6A CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222179.6A CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103517197A CN103517197A (en) | 2014-01-15 |
| CN103517197B true CN103517197B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222179.6A Active CN103517197B (en) | 2012-06-29 | 2012-06-29 | A kind of experimental technique of optimization design of cone shape of speaker cone |
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|---|---|
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592497A (en) * | 2003-09-05 | 2005-03-09 | Dlc设计公司 | Method for mfg. loadspeaker diaphragm |
| JP2008311707A (en) * | 2007-06-12 | 2008-12-25 | Foster Electric Co Ltd | Manufacturing method and manufacturing device of diaphragm for electroacoustic transducer |
-
2012
- 2012-06-29 CN CN201210222179.6A patent/CN103517197B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592497A (en) * | 2003-09-05 | 2005-03-09 | Dlc设计公司 | Method for mfg. loadspeaker diaphragm |
| JP2008311707A (en) * | 2007-06-12 | 2008-12-25 | Foster Electric Co Ltd | Manufacturing method and manufacturing device of diaphragm for electroacoustic transducer |
Non-Patent Citations (1)
| Title |
|---|
| "音盆曲面设计的关键技术研究";薛英越;《中国优秀硕士学位论文全文数据库 信息科技辑》;20071215;I138-887 * |
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|---|---|
| CN103517197A (en) | 2014-01-15 |
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Application publication date: 20140115 Assignee: MERRY ELECTRONICS CO.,LTD. Assignor: MERRY ELECTRONICS (SUZHOU) Co.,Ltd. Contract record no.: 2019990000071 Denomination of invention: Experimental method for optimization design of cone shape of speaker cone Granted publication date: 20160824 License type: Common License Record date: 20190314 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230406 Address after: 516000 Jinshan Industrial Park, Qingxi, Longmen County, Huizhou City, Guangdong Province Patentee after: Merry Electronics (Huizhou) Co.,Ltd. Address before: Xiangcheng Kang Yuan Economic Development Zone in Suzhou City, Jiangsu Province, No. 800 215131 Patentee before: MERRY ELECTRONICS (SUZHOU) Co.,Ltd. |